The post that is on the van side of the lock is adjustable.
They loosen up allowing the door to pop over bumps.
Check the alingment before buying anything new.

dylan

________________________________
From: John Rodgers <inua@CHARTER.NET>
To: vanagon@GERRY.VANAGON.COM
Sent: Monday, September 21, 2009 10:00:05 AM
Subject: Re: sliding door

This apparently was a design flaw. VW put out a new latching mechanism
that fixes the problem. I know - I bought one to solve the same problem
you have. Check the Bentley, the ETKA, and talk to Camelback VW in
Phoenix. They know.

John Rodgers
88 GL Driver

David Klein wrote:
> My sliding doors has been popping open "half" way when driving and
> driving on bumpy roads makes it happen quicker after closing. I
> lubricated as per bentley and it worked better for about half of our
> month long trip. I looked on the clearance on all side and it seems
> to sitting low in the opening but the strider plates are all lined
> up. The door had fallen off recently (previous owner) but was put
> back on by a good shop. I looked bentley about raising the door but
> it looks like the door is already raised as high it will go. Is the
> inner-working of the latch worn?
>
> Thanks, David
>